diff --git a/README.md b/README.md index 88de999..37c4e88 100644 --- a/README.md +++ b/README.md @@ -61,17 +61,6 @@ this board uses a STM32F103C8T6 micro-controller. since the device is firmware protected (against read-out), you will first need to remove this protection using an SWD adapter and running `rake remove_protection`. you can then flash the bootloader using SWD and application using DFU a documented in the section below. -The ST-LINK V2 mini clone has SWD test points on the board. -Because read protection is enabled, you will first need to remove the protection to be able to flash the firmware. -To remove the read protection (and erase flash), run `rake remove_protection` while a SWD adapter is connected. - -The Altera USB-Blaster clone has a pin header for SWD and UART1 on the board. -SWD is disabled in the main firmware, and it has read protection. -To be able to flash using SWD (or the serial port), the BOOT0 pin must be set to 1 to boot the system memory install of the flash memory. -To set BOOT0 to 1, apply 3.3 V on R11, between the resistor and the reference designator, when powering the device. -The red LED should stay off while the green LED is on. -Now you can remove the read protection (and erase flash), run `rake remove_protection` while a SWD adapter is connected. - connections ===========